Lifitng power

Terex Material Handling supplied a Demag 50t SWL, 17.6m span ZKKW double girder overhead travelling crane and a 30t SWL, 17.6m span ZKKW double girder overhead travelling crane. Both have Demag MPW open winch wire rope lifting units, which are well suited to Dril-Quip’s manufacturing processes.

The cranes have variable cross and long travel speeds of 0 - 20m/min. The 50t SWL crane has variable hoisting speeds of 0 – 8.8m/min for loads up 30t and 0 – 5.5m/min for loads above 30t;  the 30 t SWL crane has variable hoisting speeds of 0 – 8.8m/min for loads to 18t and 0 – 5.5m/min for loads above 18t. Safety features include fast to slow and slow to stop functions at cross travel and long travel limits, with an optical crane to crane anti-collision feature.

The crane systems feature AC inverter controls for smooth movement, precision positioning accuracy and minimisation of load sway. The cranes are operated via a Demag DRC-J joystick radio remote control, allowing the operator to be excluded from the lifting area for safety, ergonomic efficiency and comfort.

Dril-Quip Europe’s Lifting Equipment Supervisor, Arty Matheson, reported that the company now has several Demag cranes at its Aberdeen production facility: "We have been impressed by the productivity and reliability of our existing Demag cranes. This latest investment was prompted by the necessity to handle increasingly large and heavy loads. Terex Material Handling was able to help us meet these objectives with an engineered solution, tailored to our specific requirements, incorporating the Demag MPW open winch wire rope lifting units."